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西部地区地表起伏剧烈,往往伴随着地下构造复杂,给地震偏移处理工作带来了极大的困难,导致后续的解释结果与实际构造存在一定的差异.因此,复杂地区的地震资料成像问题显得尤为重要.文章通过对复杂地表模型的正演模拟以及山区实际地震资料的应用两方面的分析,获得了适合复杂地表的成像方法.结果表明:针对复杂地区,叠加技术成像比偏移技术成像更能真实地反映地下构造形态,是一种提高复杂地区构造成像精度的有效方法;同时,将叠加剖面和偏移剖面两者有机结合,对复杂地表资料进行解释分析,更能体现地下构造的真实形态,为煤矿工作的安全开采提供了有利依据.
The dramatic surface fluctuation in the western region often accompanies complex underground structures, which brings great difficulties to the seismic migration processing and leads to some discrepancies between the subsequent interpretation results and the actual structures. Therefore, seismic data imaging problems in complex areas appear Is very important.This paper obtains the suitable imaging method for complex surface through the forward modeling of complex surface model and the application of the actual seismic data in mountain area.The results show that for complex areas, Can truly reflect the underground tectonics, which is an effective method to improve the imaging accuracy of complex tectonics. At the same time, by combining the superposed and offset sections organically, the complex surface data can be interpreted and analyzed to better reflect the reality of subsurface structure Shape, and provide a favorable basis for the safe mining of coal mines.